Merge branch '176-glutin-window-shell' into 'master'

Resolve "Glutin window shell"

Closes #176

See merge request redox-os/orbtk!111
3 jobs for 177-pathfinder-3-renderer in 1 minute and 40 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #15938
build:linux

00:01:23

failed #15939
build:redox

00:01:40

 
  Test
skipped #15940
test:linux
 
Name Stage Failure
failed
build:redox Build

error: aborting due to 14 previous errors

Some errors have detailed explanations: E0412, E0432, E0433.
For more information about an error, try `rustc --explain E0412`.
error: Could not compile `winit`.
warning: build failed, waiting for other jobs to finish...
error: build failed
ERROR: Job failed: exit code 1